Ngk ltr7ix-11
We have tested them and they are a decent spark plug, we found the brisk however to be a little nicer, you could run a larger gap for the same given boost level than you could with the NGK, this is likely due to the Silver electrode used in the brisk design which is highly conductive.
Products » 2011 Mustang Parts » Brisk » PN#400229 2011 / 2012 5.0 Mustang Brisk Silver Racing Spark Plugs
We have tested them and they are a decent spark plug, we found the brisk however to be a little nicer, you could run a larger gap for the same given boost level than you could with the NGK, this is likely due to the Silver electrode used in the brisk design which is highly conductive.
Products » 2011 Mustang Parts » Brisk » PN#400229 2011 / 2012 5.0 Mustang Brisk Silver Racing Spark Plugs